There was a viral video a while back where a deaf girl heard her voice for the first time, with the use of advanced ear implants. And it was emotional and intense.
There's a new one of a woman in England reacting to a similar treatment, and it’s just as powerful. Maybe even MORE overwhelming. Try not to cry. (Search for "Joanne's Milne's Implants Are Turned On and She Hears for the First Time.")
(One of the YouTube comments was actually amusing: "She should have waited a few more days and said she couldn't hear anything. Then listen to everything while people assumed she was still deaf. Best April Fools prank ever.")